Aggregator<T, TResult>.AggregateBy Method

Definition

Namespace: Numerics.NET.DataAnalysis
Assembly: Numerics.NET (in Numerics.NET.dll) Version: 9.0.2

Overload List

AggregateBy(Vector<T>, IGrouping, Vector<TResult>)	Groups the elements of a vector according to the specified grouping.
AggregateBy(Vector<T>, ReadOnlySpan<Int32>, Nullable<Boolean>, Vector<TResult>)	Aggregates the elements of a vector according to the specified level indexes.
AggregateBy<TPredicate>(Vector<T>, ReadOnlySpan<Int32>, TPredicate, Nullable<Boolean>, Vector<TResult>)	Groups the elements of a vector according to the specified level indexes.

AggregateBy(Vector<T>, IGrouping, Vector<TResult>)

Groups the elements of a vector according to the specified grouping.

public virtual Vector<TResult> AggregateBy(
	Vector<T> values,
	IGrouping grouping,
	Vector<TResult>? result
)

Visual Basic

Public Overridable Function AggregateBy ( 
	values As Vector(Of T),
	grouping As IGrouping,
	result As Vector(Of TResult)
) As Vector(Of TResult)

C++/CLI

public:
virtual Vector<TResult>^ AggregateBy(
	Vector<T>^ values, 
	IGrouping^ grouping, 
	Vector<TResult>^ result
)

abstract AggregateBy : 
        values : Vector<'T> * 
        grouping : IGrouping * 
        result : Vector<'TResult> -> Vector<'TResult> 
override AggregateBy : 
        values : Vector<'T> * 
        grouping : IGrouping * 
        result : Vector<'TResult> -> Vector<'TResult>

Parameters

values Vector<T>: The vector to aggregate.
grouping IGrouping: A grouping.
result Vector<TResult>: Optional. The vector that is to hold the result. May be null.

Return Value

Vector<TResult>
A vector containing the aggregated values.

AggregateBy(Vector<T>, ReadOnlySpan<Int32>, Nullable<Boolean>, Vector<TResult>)

Aggregates the elements of a vector according to the specified level indexes.

public virtual Vector<TResult> AggregateBy(
	Vector<T> values,
	ReadOnlySpan<int> levels,
	bool? skipMissingValues,
	Vector<TResult> result
)

Visual Basic

Public Overridable Function AggregateBy ( 
	values As Vector(Of T),
	levels As ReadOnlySpan(Of Integer),
	skipMissingValues As Boolean?,
	result As Vector(Of TResult)
) As Vector(Of TResult)

C++/CLI

public:
virtual Vector<TResult>^ AggregateBy(
	Vector<T>^ values, 
	ReadOnlySpan<int> levels, 
	Nullable<bool> skipMissingValues, 
	Vector<TResult>^ result
)

abstract AggregateBy : 
        values : Vector<'T> * 
        levels : ReadOnlySpan<int> * 
        skipMissingValues : Nullable<bool> * 
        result : Vector<'TResult> -> Vector<'TResult> 
override AggregateBy : 
        values : Vector<'T> * 
        levels : ReadOnlySpan<int> * 
        skipMissingValues : Nullable<bool> * 
        result : Vector<'TResult> -> Vector<'TResult>

Parameters

values Vector<T>: The vector to aggregate.
levels ReadOnlySpan<Int32>: An array of level indexes.
skipMissingValues Nullable<Boolean>: Specifies whether missing values should be excluded from the aggregation. If null, then the value is inferred from values.
result Vector<TResult>: The vector that is to hold the result. May be null.

Return Value

Vector<TResult>

AggregateBy<TPredicate>(Vector<T>, ReadOnlySpan<Int32>, TPredicate, Nullable<Boolean>, Vector<TResult>)

Groups the elements of a vector according to the specified level indexes.

public virtual Vector<TResult> AggregateBy<TPredicate>(
	Vector<T> values,
	ReadOnlySpan<int> levels,
	TPredicate predicate,
	bool? skipMissingValues,
	Vector<TResult> result
)
where TPredicate : struct, new(), IFastFunc<T, bool>

Visual Basic

Public Overridable Function AggregateBy(Of TPredicate As {Structure, New, IFastFunc(Of T, Boolean)}) ( 
	values As Vector(Of T),
	levels As ReadOnlySpan(Of Integer),
	predicate As TPredicate,
	skipMissingValues As Boolean?,
	result As Vector(Of TResult)
) As Vector(Of TResult)

C++/CLI

public:
generic<typename TPredicate>
where TPredicate : value class, gcnew(), IFastFunc<T, bool>
virtual Vector<TResult>^ AggregateBy(
	Vector<T>^ values, 
	ReadOnlySpan<int> levels, 
	TPredicate predicate, 
	Nullable<bool> skipMissingValues, 
	Vector<TResult>^ result
)

abstract AggregateBy : 
        values : Vector<'T> * 
        levels : ReadOnlySpan<int> * 
        predicate : 'TPredicate * 
        skipMissingValues : Nullable<bool> * 
        result : Vector<'TResult> -> Vector<'TResult>  when 'TPredicate : struct, new() and IFastFunc<'T, bool>
override AggregateBy : 
        values : Vector<'T> * 
        levels : ReadOnlySpan<int> * 
        predicate : 'TPredicate * 
        skipMissingValues : Nullable<bool> * 
        result : Vector<'TResult> -> Vector<'TResult>  when 'TPredicate : struct, new() and IFastFunc<'T, bool>

Parameters

values Vector<T>: The vector to aggregate.
levels ReadOnlySpan<Int32>: An array of level indexes.
predicate TPredicate: A predicate that filters the values that are to be included in the aggregation.
skipMissingValues Nullable<Boolean>: Specifies whether missing values should be excluded from the aggregation. If null, then the value is inferred from values.
result Vector<TResult>: The vector that is to hold the result. May be null.

Type Parameters

TPredicate: The type of predicate.

Return Value

Vector<TResult>

Aggregator<T, TResult>.AggregateBy Method

Definition

Overload List

AggregateBy(Vector<T>, IGrouping, Vector<TResult>)

Parameters

Return Value

AggregateBy(Vector<T>, ReadOnlySpan<Int32>, Nullable<Boolean>, Vector<TResult>)

Parameters

Return Value

AggregateBy<TPredicate>(Vector<T>, ReadOnlySpan<Int32>, TPredicate, Nullable<Boolean>, Vector<TResult>)

Parameters

Type Parameters

Return Value

See Also

Reference